1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
artcher [175]
2 years ago
15

In the case of a rigid rorator, i.e. two masses M1 and M2 placed on a rigid weightless rod, we start from the Schrodinger equati

on for two particles 1 and 2, and then we separate the movement of the center of masses. Give the formulas of both masses that we get as part of this procedure. Calculate these masses in atomic mass units for the HD molecule by approximating the masses H and D with their mass numbers.
Chemistry
1 answer:
just olya [345]2 years ago
5 0
Bewklskenenekwkwjwjwkwkwkwwkwmkwkwkwkwkwowmwwmkwkwwkwnkwowkwbwwhwkkw
You might be interested in
Wafting the air above a chemical is one way to it directly
miskamm [114]
To smell it directly
8 0
3 years ago
The half life for the radioactive decay of potassium- to argon- is years. Suppose nuclear chemical analysis shows that there is
Semmy [17]

Answer:

Therefore, the age of the rock sample is 2.7 * 10⁹ years

<em>Note: The question is missing some parts. The complete question is:</em>

<em>The half-life for the radioactive decay of potassium-40 to argon-40 is 1.26 * 10⁹ years. Suppose nuclear chemical analysis shows that there is 0.771 mmol of argon-40 for every 1.000 mmol of potassium-40 in a certain sample of rock. Calculate the age of the rock. Round your answer to significant digits.</em>

Explanation:

Half-life is defined as the amount of time it takes a given quantity to decrease to half of its initial value.

In radioactive isotopes of elements, the half-life is used to calculate the age of the materials in which the radioisotopes are found.

The half-life is related to the age of a material through the following formula:

t = t½㏑(Nt/N₀) / -㏑2

where t is the age of the material;

t½ is the half-life of the material

Nt is the amount of material left after time t

No is the starting amount of material

From the question:

t½ = 1.26 * 10⁹ years

Nt = 1.000 - 0.771 = 0.229

N₀ = 1.000

-㏑2 = -0.693

t = {1.26 * 10⁹ * ㏑(0.229)} / -0.693

t = 2.68 * 10⁹ which is approximately 2.7 * 10⁹ years to two significant digits.

Therefore, the age of the rock sample is 2.7 * 10⁹ years

8 0
2 years ago
Eq-43 which type of fire extinguisher should be onboard a vessel with a permanently installed fuel tank
liq [111]
I think a type B fire extinguisher should be on board a vessel with a permanently installed fuel tank. 
All vessels are required to have a type B fire extinguisher on board if one or more of the following conditions exists. That is; Inboard engine, vessel length of 26 feet or longer, enclosed living spaces, closed storage compartments in which flammable or combustible materials may be stored, permanently installed fuel tanks, and also closed compartments where portable fuel tanks may be stored. 
7 0
3 years ago
What is the symbol for Lithium, Iron, and Helium
jonny [76]

Lithium=li

Iron=Fe

Helium=He

I don't say u must have to mark my ans as brainliest but if u think it has really helped u plz don't forget to thank me....

8 0
3 years ago
Read 2 more answers
What is the energy in joules of one photon of<br> microwaveradiation with a wavelength 0.122m?
pentagon [3]

<u>Answer:</u> The energy of photon is 162.93\times 10^{-26}J

<u>Explanation:</u>

The relation between energy and wavelength of light is given by Planck's equation, which is:

E=\frac{hc}{\lambda}

where,

E = energy of the light  = ?

h = Planck's constant  = 6.626\times 10^{-34}Js

c = speed of light = 3\times 10^8m/s

\lambda = wavelength of photon = 0.122 m

Putting values in above equation, we get:

E=\frac{(6.626\times 10^{-34}Js)\times (3\times 10^8m/s)}{0.122m}\\\\E=162.93\times 10^{-26}J

Hence, the energy of photon is 162.93\times 10^{-26}J

3 0
3 years ago
Other questions:
  • The first element on the periodic table of elements is hydrogen true or false
    5·2 answers
  • What mass of nitrogen gas is required to react completely with 2.79 g of hydrogen gas to produce ammonia?
    15·1 answer
  • When the oxide of generic metal M is heated at 25C, only a negligible amount of M is produced. MO2(s) &lt;---&gt; M(s)+O2(g) del
    5·1 answer
  • Which of the following is the correct name for the compound MgBr2? A) Magnesium bromate B) Magnesium bromide C) Magnesium dibrom
    9·1 answer
  • Which term describes this reaction? addition condensation elimination substitution
    8·1 answer
  • Why would an atom have zero charge
    10·1 answer
  • Complete the following equations (note that the equations are not balanced). Use the activity series if necessary. Li &gt;&gt;Ba
    7·2 answers
  • What happens to algae when the temperature in the ocean becomes too hot?
    11·1 answer
  • The diagram below shows the different phase transitions that occur in matter.
    12·2 answers
  • Calculate mole fraction of benzene (70 g) having 30 gram of mass of carbon tetrahedral​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!